摘要
以美国数字签名标准算法DSA为基础设计了一种ELGamal型有序多重数字签名方案 .允许多方顺序地对某一份文件进行签名 ,然后把它们构成一份群体签名 .该方案可以检测和防止不诚实签名者的欺骗行为 .由于简化了签名者之间的接口 ,减少了通信成本 ,有效地避免了签名死锁 。
Based on standard algorithm of America digital signature, an ELGamal type scheme of sequential multiplicate digital signature is given. In the scheme, many people are permitted to sign one file sequentially, then organized them to a group signature. This scheme can check on and prevent cheatting behavior of unhonest people. Since the contact of signaturers is simplified, the cost of correspondence is reduced, and the signature blindness is avoided efficiently, so the scheme is more secure and practical.
关键词
多重数字签名
离散对数问题
安全性
multiplicate digital signature
the question of separate logarithm
security